<?php

/**
 * This software is intended for use with Oxwall Free Community Software http://www.oxwall.org/ and is
 * licensed under The BSD license.

 * ---
 * Copyright (c) 2011, Oxwall Foundation
 * All rights reserved.

 * Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
 * following conditions are met:
 *
 *  - Redistributions of source code must retain the above copyright notice, this list of conditions and
 *  the following disclaimer.
 *
 *  - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
 *  the following disclaimer in the documentation and/or other materials provided with the distribution.
 *
 *  - Neither the name of the Oxwall Foundation nor the names of its contributors may be used to endorse or promote products
 *  derived from this software without specific prior written permission.

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/**
 * Notifications Cron
 *
 * @author Sergey Kambalin <greyexpert@gmail.com>
 * @package ow_plugins.notifications
 * @since 1.0
 */
class NOTIFICATIONS_Cron extends OW_Cron
{
    /**
     * 
     * @var NOTIFICATIONS_BOL_Service
     */
    private $service;

    public function __construct()
    {
        parent::__construct();

        $this->service = NOTIFICATIONS_BOL_Service::getInstance();

        $this->addJob('expireUnsubscribe', 60 * 60);
    }

    /**
     *  Return run interval in minutes
     *
     * @return int
     */
    public function getRunInterval()
    {
        return 10;
    }

    public function expireUnsubscribe()
    {
        $this->service->deleteExpiredUnsubscribeCodeList();
    }

    public function run()
    {
        $users = $this->service->findUserIdListForSend(100);

        foreach ( $users as $userId )
        {
            $schedule = $this->service->findSchedule($userId);
            $runTime = $this->getRunTime($userId, $schedule);

            if ( $runTime > time() )
            {
                continue;
            }

            $queue = $this->service->findQueue($userId);
            $this->service->resetCronJobTime($userId);

            if ( empty($queue) )
            {
                continue;
            }

            $notifications = $this->convertDtosToNotifications($queue);
            $this->service->sendNotifications($userId, $notifications, $schedule != NOTIFICATIONS_BOL_Service::NOTIFY_TYPE_IMMEDIATELY);
            
            $this->service->clearQueueByDtoList($queue);
        }
    }

    private function convertDtosToNotifications( $dtos )
    {
        $out = array();
        
        foreach ( $dtos as $dto )
        {
            $notification = new NOTIFICATIONS_CLASS_Notification();
            $notification->importFromQueueDto($dto);
            
            $out[] = $notification;
        }
        
        return $out;
    }
    
    private function getRunTime( $userId, $schedule )
    {
        $time = $this->service->findCronJobTime($userId);

        if ( !empty($time) )
        {
            return (int) $time;
        }

        $time = $this->getTimeStamp($schedule);

        $this->service->setCronJobTime($userId, $time);

        return $time;
    }

    private function getTimeStamp( $type )
    {
        $configs = OW::getConfig()->getValues('notifications');
        $day = $configs['schedule_wday'];
        $hour = $configs['schedule_dhour'];
        $weekDays = array('Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday');

        switch ( $type )
        {
            case NOTIFICATIONS_BOL_Service::NOTIFY_TYPE_DAILY:
                return strtotime("today $hour:00:00");

            case NOTIFICATIONS_BOL_Service::NOTIFY_TYPE_WEEKLY:
                return strtotime("{$weekDays[$day]} $hour:00:00");
            
            default:
                return time();
        }
    }
}